US20180187976A1 - Rotary heat exchanger - Google Patents
Rotary heat exchanger Download PDFInfo
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- US20180187976A1 US20180187976A1 US15/741,540 US201515741540A US2018187976A1 US 20180187976 A1 US20180187976 A1 US 20180187976A1 US 201515741540 A US201515741540 A US 201515741540A US 2018187976 A1 US2018187976 A1 US 2018187976A1
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- Prior art keywords
- rotor
- partition
- heat exchanger
- fluid flow
- flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
- F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
- F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
- F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
- F28D19/047—Sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
- F28F5/02—Rotary drums or rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/104—Heat exchanger wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1096—Rotary wheel comprising sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
Definitions
- the invention relates to a rotary heat exchanger through which a first fluid stream, for example an outside air or inlet air stream, and a second fluid stream, for example an exit air or outgoing air stream, can flow in a counterflow configuration.
- a first fluid stream for example an outside air or inlet air stream
- a second fluid stream for example an exit air or outgoing air stream
- Such a rotary heat exchanger typically has with a rotatably mounted rotor and forms a first flow sector for the first fluid stream and a second flow sector for the second fluid stream through which the rotor passes during a rotation, a frame in which the rotor is rotatably supported, and a sealing assembly that separates an inflow side of the first fluid stream and an outflow side of the second fluid stream respectively from the outflow side of the first fluid stream and from an inflow side of the second fluid stream.
- the rotor which is a rotating storage mass, must be sealed relative to the housing and the frame of the rotary heat exchanger. Moreover, the two fluid flows upstream and downstream from the rotary heat exchanger must also be separated from and sealed with respect one another. Leakage during operation of the rotary heat exchanger can be prevented for the most part by these sealing measures.
- the sealing assembly has a first seal that bears sealingly against the side of a partition directed upstream into the first fluid stream, and a second seal that bears sealingly against the opposite side of the same partition directed upstream into the second fluid stream.
- the differential pressure on the sealing assembly is always equal to the pressure loss of the respective fluid flow in the rotor forming the storage mass; accordingly, this differential pressure always causes the seal to be pressed against the partition in the respective direction of fluid flow.
- the partition is axially spaced from the two axial end faces on the cylindrical outer edge surface of the rotor and has a circular cutout whose inside diameter slightly exceeds the outside diameter of the rotor. Accordingly, the space between the cylindrical outer edge surface of the rotor on the one hand and the frame on the other hand can be utilized for the installation and/or assembly of the sealing assembly, with it being possible to avoid having portions or components of the sealing assembly projecting over the axial end faces of the rotor forming the storage mass.
- its first seal is annular and has an axially extending part seated on the cylindrical outer edge surface of the rotor, and a radially extending part bearing axially on the face of the partition directed upstream into the first fluid stream.
- a commensurately advantageous embodiment is achieved with respect to the second seal if it is also annular and has an axially extending part seated on the cylindrical outer edge surface of the rotor, and a radially extending part bearing axially on the face of the partition directed upstream into the second fluid stream.
- both seals are fixed by their axially extending parts on the cylindrical outer edge surface of the rotor and can be brought into sliding and sealing abutment with their radially extending parts against the side of the partition that is respectively associated with them.
- both seals it is also advantageous for both seals to extend around the entire periphery of the rotor on the cylindrical edge surface thereof, because, due to the rotation of the rotor or storage mass, every circumferential portion of the seals enters into both flow sectors or fluid flows and is thus subjected to opposing pressure differences.
- the stability is increased when the rotary heat exchanger is operated with high pressure losses and commensurately high pressure differentials on the sealing assembly.
- the seals of the sealing assembly of the rotary heat exchanger according to the invention are advantageously made of an abrasion-resistant and flexible material that is impermeable to fluids, such as an artificial leather material, an extruded plastic, or the like, so that the axially extending parts of the seals can be fixed on the cylindrical outer edge surface of the rotor and the radially extending parts of the seals can be brought into sliding and sealing abutment against the respective axially directed side or face of the partition.
- both seals can be brought into sliding and sealing abutment with their axially extending parts against the cylindrical outer edge surface of the rotor and fixed by their radially extending parts on the side of the partition with which they are respectively associated.
- the seal can then be provided exclusively on the respective inflow side of the flow sectors of the partition, since a higher pressure is always present on the inflow side than on the outflow side.
- the second semicircular seal is also fastened on the partition and arranged so as to slide on the cylindrical outer edge surface of the rotor, with the second seal extending only over a circumferential portion of the circular cutout of the partition that is associated with the flow sector of the second fluid stream.
- FIG. 2 is a front view of the embodiment of the rotary heat exchanger according to the invention shown in FIG. 1 ;
- FIG. 3 is a partial, perspective schematic view of a detail of the embodiment of the rotary heat exchanger according to the invention shown in FIGS. 1 and 2 that are essential for the invention.
- FIGS. 1 and 2 Two fluid flows 2 , 3 flow axially in opposite directions through a rotary heat exchanger 1 according to the invention, of which a perspective and a front view are shown in respective FIGS. 1 and 2 .
- the first fluid stream 2 is an outside air or inlet air stream 2
- the second fluid stream 3 is an exhaust air or outgoing air stream 3 .
- the two fluid flows 2 and 3 are illustrated in FIG. 1 by directional arrows.
- the rotary heat exchanger 1 has a frame 4 with an approximately square outer periphery. This frame 4 surrounds the outer periphery of a rotor 5 of the rotary heat exchanger 1 .
- the rotor 5 has a cylindrical outer lateral edge surface 6 that can for example be formed by a suitable sheet metal.
- the heat exchanger 1 defines a first flow sector 7 through which the outside air or inlet air stream flows as shown in FIG. 1 .
- the exchanger 1 also has a second flow sector 6 through which the exhaust or outgoing air stream 3 flows in an axial direction opposite the outside or inlet air stream 2 .
- the rotor 5 of the rotary heat exchanger 1 is rotationally carried on an unillustrated bearing or hub.
- an inflow side of the outside air or inlet air stream 3 is sealed from the outflow side thereof.
- the outflow side of the exhaust air or outgoing air stream 3 is tightly sealed from an inflow side thereof in the rotary heat exchanger 1 . It should be pointed out that, in FIGS. 1 and 2 , the rotary heat exchanger 1 is viewed from the inflow side of the outside air or inlet air stream 2 and an outflow side of the exhaust air or outgoing air stream 3 .
- a sealing assembly 9 is in the frame 4 of the rotary heat exchanger 1 that separates the inflow and outflow sides of the outside air or inlet air stream 2 and of the exhaust air or outgoing air stream 3 from one another.
- a separating wall (not shown in the figures) is provided extending axially upstream and downstream from the rotary heat exchanger 1 for separating the outside air or inlet air stream 2 upstream and downstream from the rotary heat exchanger 1 from the exhaust air or outgoing air stream 3 .
- the sealing assembly 9 that is provided in the frame 4 has a partition 10 whose outer periphery fits with the inner periphery of the frame 4 and is fastened there.
- the partition 10 is provided with a circular cutout 11 in its center region.
- the inner diameter of the circular cutout 11 of the partition 10 corresponds substantially to the outer diameter of the rotor 5 of the rotary heat exchanger 1 but is slightly larger, so that manufacturing tolerances occurring during the manufacture of the rotor 5 cannot possibly result in friction and the like and resulting damage.
- the sealing assembly 9 also has a first seal in the form of a first annular seal lip 12 and a second seal in the form of a second annular seal lip 13 .
- the first annular seal lip 12 is on the inside diameter of the circular cutout 11 of the partition 10 on the inflow side of the outside air or inlet air stream 2 and analogously on the outflow side of the exhaust air or outgoing air stream 3 .
- the second annular seal lip 13 is on the inside diameter of the circular cutout 11 of the partition 10 on the outflow side of the outside air or inlet air stream 2 and the inflow side of the exhaust air or outgoing air stream 3 , as can be seen particularly in FIG. 3 , which will be explained in further detail below.
- the two annular seal lips 12 and 13 extend around the entire periphery of the rotor 5 on its cylindrical outer edge surface 6 .
- the partition 10 and the two annular seal lips 12 and 13 are axially spaced from the respective end faces of the rotor 5 against or from its cylindrical outer edge surface 6 .
- the first annular seal lip 12 has an axially extending part 14 that extends axially of the rotor 5 and is seated on the cylindrical outer edge surface 6 of the rotor 5 and tightly fastened or mounted there. Moreover, the first annular seal lip has a radially extending sealing portion 15 that extends radially of the rotor 5 and engages the upstream axial face of the partition 10 that is on the inflow side of the outside or inlet air stream 2 and can be brought into sealing abutment against this face of the partition 10 .
- the second annular seal lip 13 is on the outflow side of the outside air or inlet air stream 2 and thus the inflow side of the exhaust air or outgoing air stream 3 of the partition 10 and has an axially extending part 16 that is extends axially of the rotor 5 , is seated on the cylindrical outer edge surface 6 of the rotor 5 and is tightly fastened or mounted there, and a radially extending part 17 that extends radially of the rotor 5 , engages the upstream face of the exhaust air or outgoing air stream 3 of the partition 10 and can be brought into sealing abutment there against this face of the partition 10 .
- the two annular seal lips 12 and 13 are made of a suitable abrasion-resistant and flexible material that is impermeable to fluids, such as an artificial leather material, an extruded plastic, or the like. Accordingly, the axially extending parts 14 and 16 of the two annular seal lips 12 , 13 can be fixed securely on the cylindrical outer edge surface 6 of the rotor, and the radially extending parts 15 and 17 of the two annular seal lips 12 , 13 can be simultaneously brought into sliding and sealing abutment against the face of the partition 10 with which they are associated.
- the pressure differentials on the annular seal lips 12 and 13 are relatively small and, furthermore, independent of the pressure differentials between the outside air or inlet air stream 2 on the one hand and the exhaust air or outgoing air stream 3 on the other hand.
- the pressure differential on the annular seal lips 12 and 13 is always equal to the pressure loss of the outside air or inlet air stream 2 and, accordingly, of the exhaust air or outgoing air stream 3 , as it occurs on the rotor 5 forming the storage mass.
- the partition 10 is seated between the two radial portions 15 and 17 of the two annular seal lips 12 and 13 and extends, like the two seal lips 12 and 13 , around the entire periphery of the cylindrical outer edge surface 6 of the rotor 5 .
- the partition 10 can also be arranged approximately or exactly in the center of the rotor 5 , seen axially.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- This application is the US-national stage of PCT application PCT/EP2015/001848 filed 16 Sep. 2015 and claiming the priority of German patent application 202015005300.9 itself filed 30 Jul. 2015.
- The invention relates to a rotary heat exchanger through which a first fluid stream, for example an outside air or inlet air stream, and a second fluid stream, for example an exit air or outgoing air stream, can flow in a counterflow configuration.
- Such a rotary heat exchanger typically has with a rotatably mounted rotor and forms a first flow sector for the first fluid stream and a second flow sector for the second fluid stream through which the rotor passes during a rotation, a frame in which the rotor is rotatably supported, and a sealing assembly that separates an inflow side of the first fluid stream and an outflow side of the second fluid stream respectively from the outflow side of the first fluid stream and from an inflow side of the second fluid stream.
- During operation of such a rotary heat exchanger, the rotor, which is a rotating storage mass, must be sealed relative to the housing and the frame of the rotary heat exchanger. Moreover, the two fluid flows upstream and downstream from the rotary heat exchanger must also be separated from and sealed with respect one another. Leakage during operation of the rotary heat exchanger can be prevented for the most part by these sealing measures.
- It is necessary for such leakage to be prevented, since the supply air quality is otherwise reduced, for example, because components of the exhaust air get into the inlet air stream; what is more, leaks occur from the outside air into the outgoing air, for example, where higher-powered fans need to be installed for the outside air and/or inlet air stream, since greater quantities of air must be conveyed than are actually required in order to achieve the desired inlet air volume; disturbances also arise with respect to the recovery performance of the rotary heat exchanger, since bypass flows that flow around the rotor or storage mass reduce the overall performance of the rotary heat exchanger.
- On the other hand, certain gaps or spaces are necessary between the rotor forming the heat-storage mass and the housing and/or frame parts that are stationary relative to it, since deviations of the rotor forming the storage mass from the ideal cylinder shape and other construction tolerances would inevitably lead to unwanted friction and result in damage. The gaps and spaces that are therefore necessary must be sealed by the sealing assembly of the rotary heat exchanger.
- Starting from the prior art described above, it is the object of the invention to further develop the rotary heat exchanger described above such that the sealing assembly thereof can be simplified, with a reliable seal between the inflow and outflow sides of the two fluid flows being automatically ensured during operation of the rotary heat exchanger.
- This object is achieved according to the invention by virtue of the fact that the sealing assembly has a first seal that bears sealingly against the side of a partition directed upstream into the first fluid stream, and a second seal that bears sealingly against the opposite side of the same partition directed upstream into the second fluid stream. In order to ensure the sealing function in the area of the rotary heat exchanger, it is thus only necessary to have a single partition that is extends radially of the rotor and seals the rotor or storage mass with respect to the frame. Due to the pressure conditions within the rotary heat exchanger, in whose rotor or storage mass each of the two fluid flows flowing through the rotor in a counterflow configuration experiences a drop in pressure, a sealing effect is automatically created between the partition and the two seals, with this sealing effect being produced in the first flow sector by the first fluid stream and in the second flow sector by the second fluid stream, each of which presses the respective seal with against the single partition, particularly on different sides or faces of the partition. This results in a nearly gap-free seal with extremely low friction losses. In the embodiment of the sealing assembly with only one partition, the differential pressures on the seals are smaller and independent of the differential pressure between the two fluid flows. The differential pressure on the sealing assembly, provided that it is embodied with only one partition, is always equal to the pressure loss of the respective fluid flow in the rotor forming the storage mass; accordingly, this differential pressure always causes the seal to be pressed against the partition in the respective direction of fluid flow.
- Advantageously, the partition is axially spaced from the two axial end faces on the cylindrical outer edge surface of the rotor and has a circular cutout whose inside diameter slightly exceeds the outside diameter of the rotor. Accordingly, the space between the cylindrical outer edge surface of the rotor on the one hand and the frame on the other hand can be utilized for the installation and/or assembly of the sealing assembly, with it being possible to avoid having portions or components of the sealing assembly projecting over the axial end faces of the rotor forming the storage mass.
- Accordingly, it can also be advantageous to provide the partition in the center between the two axial end faces on the cylindrical outer edge surface of the rotor.
- According to an advantageous development of the rotary heat exchanger according to the invention, its first seal is annular and has an axially extending part seated on the cylindrical outer edge surface of the rotor, and a radially extending part bearing axially on the face of the partition directed upstream into the first fluid stream.
- A commensurately advantageous embodiment is achieved with respect to the second seal if it is also annular and has an axially extending part seated on the cylindrical outer edge surface of the rotor, and a radially extending part bearing axially on the face of the partition directed upstream into the second fluid stream.
- In order to ensure a reliable sealing effect for all types of application and use of the rotary heat exchanger, it is advantageous if both seals are fixed by their axially extending parts on the cylindrical outer edge surface of the rotor and can be brought into sliding and sealing abutment with their radially extending parts against the side of the partition that is respectively associated with them. In this embodiment, it is also advantageous for both seals to extend around the entire periphery of the rotor on the cylindrical edge surface thereof, because, due to the rotation of the rotor or storage mass, every circumferential portion of the seals enters into both flow sectors or fluid flows and is thus subjected to opposing pressure differences. Moreover, due to the bilateral arrangement of the seals over the entire periphery of the cylindrical edge surface of the storage mass or rotor, the stability is increased when the rotary heat exchanger is operated with high pressure losses and commensurately high pressure differentials on the sealing assembly.
- The seals of the sealing assembly of the rotary heat exchanger according to the invention are advantageously made of an abrasion-resistant and flexible material that is impermeable to fluids, such as an artificial leather material, an extruded plastic, or the like, so that the axially extending parts of the seals can be fixed on the cylindrical outer edge surface of the rotor and the radially extending parts of the seals can be brought into sliding and sealing abutment against the respective axially directed side or face of the partition.
- During the manufacture of the sealing assembly or of the rotary heat exchanger, if both the installed position of the rotor or storage mass and the direction of the fluid flows that flow through the rotary heat exchanger in a counterflow configuration are known, it is possible to design both seals such that they can be brought into sliding and sealing abutment with their axially extending parts against the cylindrical outer edge surface of the rotor and fixed by their radially extending parts on the side of the partition with which they are respectively associated. With a corresponding set of requirements, the seal can then be provided exclusively on the respective inflow side of the flow sectors of the partition, since a higher pressure is always present on the inflow side than on the outflow side.
- In such embodiments of the heat exchanger according to the invention, the first semicircular seal is fastened on the partition and arranged so as to slide on the cylindrical outer edge surface of the rotor and extends only over a circumferential portion of the circular cutout of the partition that is associated with the flow sector of the first fluid stream.
- Accordingly, the second semicircular seal is also fastened on the partition and arranged so as to slide on the cylindrical outer edge surface of the rotor, with the second seal extending only over a circumferential portion of the circular cutout of the partition that is associated with the flow sector of the second fluid stream.
- The invention will be explained below in further detail on the basis of an embodiment with reference to the drawing.
-
FIG. 1 is a perspective schematic view of an embodiment of a rotary heat exchanger according to the invention; -
FIG. 2 is a front view of the embodiment of the rotary heat exchanger according to the invention shown inFIG. 1 ; and -
FIG. 3 is a partial, perspective schematic view of a detail of the embodiment of the rotary heat exchanger according to the invention shown inFIGS. 1 and 2 that are essential for the invention. - Two fluid flows 2, 3 flow axially in opposite directions through a rotary heat exchanger 1 according to the invention, of which a perspective and a front view are shown in respective
FIGS. 1 and 2 . Thefirst fluid stream 2 is an outside air orinlet air stream 2, and thesecond fluid stream 3 is an exhaust air oroutgoing air stream 3. The two fluid flows 2 and 3 are illustrated inFIG. 1 by directional arrows. - In the illustrated embodiment, the rotary heat exchanger 1 has a frame 4 with an approximately square outer periphery. This frame 4 surrounds the outer periphery of a
rotor 5 of the rotary heat exchanger 1. Therotor 5 has a cylindrical outer lateral edge surface 6 that can for example be formed by a suitable sheet metal. - Moreover, the heat exchanger 1 defines a
first flow sector 7 through which the outside air or inlet air stream flows as shown inFIG. 1 . The exchanger 1 also has a second flow sector 6 through which the exhaust oroutgoing air stream 3 flows in an axial direction opposite the outside orinlet air stream 2. - The
rotor 5 of the rotary heat exchanger 1 is rotationally carried on an unillustrated bearing or hub. - In the rotary heat exchanger 1, an inflow side of the outside air or
inlet air stream 3 is sealed from the outflow side thereof. Similarly, the outflow side of the exhaust air oroutgoing air stream 3 is tightly sealed from an inflow side thereof in the rotary heat exchanger 1. It should be pointed out that, inFIGS. 1 and 2 , the rotary heat exchanger 1 is viewed from the inflow side of the outside air orinlet air stream 2 and an outflow side of the exhaust air oroutgoing air stream 3. - A sealing assembly 9 is in the frame 4 of the rotary heat exchanger 1 that separates the inflow and outflow sides of the outside air or
inlet air stream 2 and of the exhaust air oroutgoing air stream 3 from one another. - It should be noted here that, as will readily be understood, a separating wall (not shown in the figures) is provided extending axially upstream and downstream from the rotary heat exchanger 1 for separating the outside air or
inlet air stream 2 upstream and downstream from the rotary heat exchanger 1 from the exhaust air oroutgoing air stream 3. - The sealing assembly 9 that is provided in the frame 4 has a
partition 10 whose outer periphery fits with the inner periphery of the frame 4 and is fastened there. - The
partition 10 is provided with acircular cutout 11 in its center region. The inner diameter of thecircular cutout 11 of thepartition 10 corresponds substantially to the outer diameter of therotor 5 of the rotary heat exchanger 1 but is slightly larger, so that manufacturing tolerances occurring during the manufacture of therotor 5 cannot possibly result in friction and the like and resulting damage. - Nevertheless, in order to tightly separate the inflow and outflow sides from one another by means of the partition within the rotary heat exchanger 1, the sealing assembly 9 also has a first seal in the form of a first
annular seal lip 12 and a second seal in the form of a secondannular seal lip 13. - In the illustrated embodiment of the rotary heat exchanger 1, the first
annular seal lip 12 is on the inside diameter of thecircular cutout 11 of thepartition 10 on the inflow side of the outside air orinlet air stream 2 and analogously on the outflow side of the exhaust air oroutgoing air stream 3. Similarly, the secondannular seal lip 13 is on the inside diameter of thecircular cutout 11 of thepartition 10 on the outflow side of the outside air orinlet air stream 2 and the inflow side of the exhaust air oroutgoing air stream 3, as can be seen particularly inFIG. 3 , which will be explained in further detail below. - In the illustrated embodiment, the two
annular seal lips rotor 5 on its cylindrical outer edge surface 6. - The
partition 10 and the twoannular seal lips rotor 5 against or from its cylindrical outer edge surface 6. - The first
annular seal lip 12 has an axially extending part 14 that extends axially of therotor 5 and is seated on the cylindrical outer edge surface 6 of therotor 5 and tightly fastened or mounted there. Moreover, the first annular seal lip has a radially extendingsealing portion 15 that extends radially of therotor 5 and engages the upstream axial face of thepartition 10 that is on the inflow side of the outside orinlet air stream 2 and can be brought into sealing abutment against this face of thepartition 10. - Similarly as can be seen particularly from
FIG. 3 , the secondannular seal lip 13 is on the outflow side of the outside air orinlet air stream 2 and thus the inflow side of the exhaust air oroutgoing air stream 3 of thepartition 10 and has an axially extendingpart 16 that is extends axially of therotor 5, is seated on the cylindrical outer edge surface 6 of therotor 5 and is tightly fastened or mounted there, and a radially extendingpart 17 that extends radially of therotor 5, engages the upstream face of the exhaust air oroutgoing air stream 3 of thepartition 10 and can be brought into sealing abutment there against this face of thepartition 10. - The two
annular seal lips axially extending parts 14 and 16 of the twoannular seal lips radially extending parts annular seal lips partition 10 with which they are associated. - Since the seal between inflow and outflow sides is accomplished by only a
single partition 10 in the case of the embodiment of the rotary heat exchanger 1 according to the invention described above, the pressure differentials on theannular seal lips inlet air stream 2 on the one hand and the exhaust air oroutgoing air stream 3 on the other hand. By virtue of the design of the sealing assembly 9 with asingle partition 10, the pressure differential on theannular seal lips inlet air stream 2 and, accordingly, of the exhaust air oroutgoing air stream 3, as it occurs on therotor 5 forming the storage mass. Accordingly, in both flowsectors rotor 5, a pressing of theradially extending part 15 of the firstannular seal lip 12 against the side of thepartition 10 facing toward the inflow side of the outside air orinlet air stream 2 and of theradially extending part 17 of the secondannular seal lip 13 against the side of thepartition 10 facing toward the inflow side of the exhaust air oroutgoing air stream 3 is achieved, with the consequence that a reliable seal is achieved between the inflow and outflow sides both with respect to the outside air orinlet air stream 2 and the exhaust air oroutgoing air stream 3. - The manner in which the two
seal lips FIG. 3 of a portion of the cylindrical outer edge surface 6 of therotor 5, for which thepartition 10 and the twoannular seal lips annular seal lips annular seal lips partition 10. - The
partition 10 is seated between the tworadial portions annular seal lips seal lips rotor 5. - In an alternative embodiment of the rotary heat exchanger according to the invention, for the use of which both the installed position and the direction of the two
fluid flows partition 10. If the two seal lips do not move with the rotor, it is sufficient if corresponding seal lips are provided only on the inflow side in the two flow sectors, since greater pressure is always present on the inflow side than on the outflow side. - As will readily be understood, unlike in the view in
FIG. 3 , thepartition 10 can also be arranged approximately or exactly in the center of therotor 5, seen axially.
Claims (13)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE202015005300.9 | 2015-07-30 | ||
DE202015005300U | 2015-07-30 | ||
DE202015005300.9U DE202015005300U1 (en) | 2015-07-30 | 2015-07-30 | Rotary heat exchanger |
PCT/EP2015/001848 WO2017016570A1 (en) | 2015-07-30 | 2015-09-16 | Rotary heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
US20180187976A1 true US20180187976A1 (en) | 2018-07-05 |
US10533806B2 US10533806B2 (en) | 2020-01-14 |
Family
ID=54251469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/741,540 Active US10533806B2 (en) | 2015-07-30 | 2015-09-16 | Rotary heat exchanger |
Country Status (7)
Country | Link |
---|---|
US (1) | US10533806B2 (en) |
EP (1) | EP3329202B1 (en) |
DE (1) | DE202015005300U1 (en) |
ES (1) | ES2929510T3 (en) |
PL (1) | PL3329202T3 (en) |
RU (1) | RU2018106873A (en) |
WO (1) | WO2017016570A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3579174A1 (en) | 2018-06-08 | 2019-12-11 | Hexagon Technology Center GmbH | Mobile vehicles in manufacturing |
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US5002116A (en) | 1983-08-15 | 1991-03-26 | Airxchange, Inc. | Rotary heat regenerator |
US5069272A (en) * | 1989-08-17 | 1991-12-03 | Stirling Technology, Inc. | Air to air recouperator |
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DE10327078A1 (en) | 2003-06-13 | 2004-12-30 | Klingenburg Gmbh | Rotary heat exchanger and method for sealing such |
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2015
- 2015-07-30 DE DE202015005300.9U patent/DE202015005300U1/en active Active
- 2015-09-16 EP EP15774854.2A patent/EP3329202B1/en active Active
- 2015-09-16 US US15/741,540 patent/US10533806B2/en active Active
- 2015-09-16 PL PL15774854.2T patent/PL3329202T3/en unknown
- 2015-09-16 RU RU2018106873A patent/RU2018106873A/en unknown
- 2015-09-16 WO PCT/EP2015/001848 patent/WO2017016570A1/en active Application Filing
- 2015-09-16 ES ES15774854T patent/ES2929510T3/en active Active
Patent Citations (4)
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WO1988008112A1 (en) * | 1987-04-16 | 1988-10-20 | Fläkt Ab | A rotatable heat exchanger |
US5183098A (en) * | 1989-08-17 | 1993-02-02 | Stirling Technology, Inc. | Air to air heat recovery ventilator |
US5238052A (en) * | 1989-08-17 | 1993-08-24 | Stirling Technology, Inc. | Air to air recouperator |
US5285842A (en) * | 1989-08-17 | 1994-02-15 | Stirling Technology, Inc. | Heat recovery ventilator |
Also Published As
Publication number | Publication date |
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WO2017016570A1 (en) | 2017-02-02 |
US10533806B2 (en) | 2020-01-14 |
PL3329202T3 (en) | 2022-12-27 |
EP3329202A1 (en) | 2018-06-06 |
RU2018106873A3 (en) | 2019-08-29 |
ES2929510T3 (en) | 2022-11-29 |
EP3329202B1 (en) | 2022-08-24 |
RU2018106873A (en) | 2019-08-29 |
DE202015005300U1 (en) | 2015-10-05 |
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